Category 2 Test.

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Presentation transcript:

Category 2 Test

1. The graph shows the movement of a car over time. What is the car’s 1 The graph shows the movement of a car over time. What is the car’s average speed? F 10 kilometers per hour G 15 kilometers per hour H 30 kilometers per hour J 60 kilometers per hour

2. Which of the following devices converts chemical energy to light 2 Which of the following devices converts chemical energy to light energy? A C Wind turbines Flashlight B D Electric Lamp Solar cells

3 Diesel fuel is used in the engines of the machines and trucks at the quarry. Which of these is the main energy transformation as the fuel is used by the engines? F Electrical energy is converted to heat energy. G Heat energy is converted to potential energy. H Electrical energy is converted to kinetic energy. J Chemical energy is converted to kinetic energy.

4. Which energy transformation occurs when a match is lit. F 4 Which energy transformation occurs when a match is lit? F Chemical energy to heat energy G Heat energy to potential energy H Electrical energy to heat energy J Kinetic energy to potential energy

5. The picture shows a lima bean seedling as the root starts to grow 5 The picture shows a lima bean seedling as the root starts to grow into the soil. The root tip is able to push through the soil because it acts as a — A wheel B pulley C gear D wedge

6. When the human heart contracts, it pumps blood to other parts of 6 When the human heart contracts, it pumps blood to other parts of the body. When the heart contracts, the blood moves because the — A pressure in the heart increases B temperature of the blood increases C density of the blood increases D size of the heart increases

7. The diagram above shows a barrel moving toward a waterfall. The 7 The diagram above shows a barrel moving toward a waterfall. The barrel will have the greatest potential energy at which of these locations? A W B X C Y D Z

8. Which of the following best represents stored potential energy. F 8 Which of the following best represents stored potential energy? F Air leaking from a flat tire G Stress built up in a rock fault H Heat given off by a forest fire J Water flowing through a hose

9. At which point on the roller coaster will the car have the greatest 9 At which point on the roller coaster will the car have the greatest amount of kinetic energy? F W G X H Y J Z

10 If a force is applied for 15 seconds, in which situation will the box be moved the greatest distance?

Javelina 11 Javelinas need strong leg muscles to help provide enough force for them to accelerate to high speeds. This fast movement can help javelinas escape from predators and reach the safety of the pack. If a javelina runs 42 m in 6 s, what is its average speed? A 6 m/s B 7 m/s C 48 m/s D 252 m/s

12. Examine the image provided 12. Examine the image provided. Which statement describes a condition that would cause the car to move forward? A The force of the engine is less than the force of friction. B The pulling force is greater than the force pushing on the car. C The pushing force is less than the force pulling on the car. D The force of the engine is greater than the force of friction

13. Which of the following objects would have the greatest acceleration if they each have 15 N of force acting upon it? A 5g ball B 10g rock C 50g orange D 100g book